## Summary AgentIdentity auth previously registered the process task lazily behind a `OnceCell`. That meant the auth object could be constructed before its runtime task binding was known. This PR makes AgentIdentity auth load the runtime task at auth load time and stores the resulting process task id directly on the auth object. The model-provider call path can then read a concrete task id instead of handling a missing lazy value. ## Stack 1. [refactor: make auth loading async](https://github.com/openai/codex/pull/19762) (merged) 2. **This PR:** [refactor: load AgentIdentity runtime eagerly](https://github.com/openai/codex/pull/19763) 3. [fix: configure AgentIdentity AuthAPI base URL](https://github.com/openai/codex/pull/19904) 4. [feat: verify AgentIdentity JWTs with JWKS](https://github.com/openai/codex/pull/19764) ## Important call sites | Area | Change | | --- | --- | | `AgentIdentityAuth::load` | Registers the process task during auth loading and stores `process_task_id`. | | `CodexAuth::from_agent_identity_jwt` | Awaits AgentIdentity auth loading. | | model-provider auth | Reads a concrete `process_task_id` instead of an optional lazy value. | | AgentIdentity auth tests | Mock task registration now covers eager runtime allocation. | ## Design decisions AgentIdentity auth now treats task registration as part of constructing a usable auth object. That matches how callers use the value: once auth is present, the model-provider path expects the task-scoped assertion data to be ready. ## Testing Tests: targeted Rust auth test compilation, formatter, scoped Clippy fix, and Bazel lock check.
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